Thanks for the input all,

I purchased the engine and the bearings seem to be in excellent shape - in fact, by the looks of it, the engine has actually never been run (if it has, only once to see if it starts)! There is no castor build up anywhere and the piston doesn't have a mark on it.

In order for this engine to fit I'll need a Pitts-style muffler. Anyone know where I can find one for this old engine?

Thanks again,

Scott.